<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>案例2</title>
		<style type="text/css">
			button{
				height: 25px;
				font-size: 20px;
				margin: 10px 0 0 45px;
				color: white;
				background-color: #ff6600;
				border: none;
			}
		</style>
	</head>
	<body>
		<div id="div1"style="width: 500px;height: 400px;margin: 20px auto;border: 1px solid #ff6600;background-color: #fef4eb;">
			<button type="button"id="btn1">Get Style</button>
			<button type="button"id="btn2">Set Style</button>
			<button type="button"id="btn3">Default Style</button>
		</div>
	</body>
</html>
<script src="../js/jquery-3.5.1.min.js" type="text/javascript" charset="utf-8"></script>
<script src="./js/test2.js" type="text/javascript" charset="utf-8"></script>